For a generation, many North American parents have indulged children’s picky eating tendencies by sticking them in an endlessly repeating loop of chicken fingers, burgers, pizza, plain pasta, mac and cheese, and grilled cheese sandwiches.

With more waistlines bulging over more belts, no wonder the idea that we can be hefty and healthy is so popular. But before you go ahead and celebrate your girth, the concept of healthy obesity is being challenged.

The best advice for cancer prevention is to do what your mom always told you: Eat your fruit and vegetables, get some exercise and keep that weight in a healthful range, says Stephen Hursting, a professor

It's that time of year when New Year's resolutions begin to fade, and even the best-laid plans can become sidetracked as life gets busy. But as psychologists and behavioral economists have found reasons why it's so easy to let good intentions slide, they've also come up with tools to help.